Give better diagnostic for problems with backing files.

2004-07-25 08:17:23 +00:00 · 2004-07-25 08:17:23 +00:00 · e869d3777e
commit e869d3777e
parent a3d57cfbfd
1 changed files with 4 additions and 0 deletions
--- a/sbin/mdconfig/mdconfig.c
+++ b/sbin/mdconfig/mdconfig.c
@ -113,6 +113,10 @@ main(int argc, char **argv)
 				cmdline = 2;
 			}
 			mdio.md_file = optarg;
+			fd = open(optarg, O_RDONLY);
+			if (fd < 0)
+				err(1, "could not open %s", optarg);
+			close(fd);
 			break;
 		case 'o':
 			if (cmdline != 2)